[b][color=black]What happened:: [/color][/b]
[b][color=black]Scammers Profile Link: [/color][/b]
[b][color=black]Reference Link: [/color][/b]
[b][color=black]Amount Scammed: [/color][/b]
[b][color=black]Payment Method: [/color][/b]
[b][color=black]Proof of Payment: [/color][/b]
[b][color=black]PM/Chat Logs: [/color][/b]
[b][color=black]Additional Notes: [/color][/b]
You also can visit this thread to see an example on how to fill it out well.
You need evidence about what happened exactly with this user, add his profile link, explain more how did you get his contact. If you fail providing all these details and proofs, you can’t form a valid case against this person. Taking also that you are a brand new member here, nobody will believe anything you would say without clear evidence.